doc: Add missing override and remove redundant virtual for snippets

Change-Id: I2395fd01b93c4ea364225e0cf1a5f59908b691d0
Reviewed-by: Martin Smith <[email protected]>

src/corelib/doc/snippets/code/src_corelib_concurrent_qthreadpool.cpp

@@ -51,7 +51,7 @@
 //! [0]
 class HelloWorldTask : public QRunnable
 {
-    void run()
+    void run() override
     {
         qDebug() << "Hello world from thread" << QThread::currentThread();
     }

src/corelib/doc/snippets/code/src_corelib_io_qabstractfileengine.cpp

@@ -52,7 +52,7 @@
 class ZipEngineHandler : public QAbstractFileEngineHandler
 {
 public:
-    QAbstractFileEngine *create(const QString &fileName) const;
+    QAbstractFileEngine *create(const QString &fileName) const override;
 };
 
 QAbstractFileEngine *ZipEngineHandler::create(const QString &fileName) const
@@ -105,20 +105,20 @@ class CustomIterator : public QAbstractFileEngineIterator
         entries << "entry1" << "entry2" << "entry3";
     }
 
-    bool hasNext() const
+    bool hasNext() const override
     {
         return index < entries.size() - 1;
     }
 
-    QString next()
+    QString next() override
     {
        if (!hasNext())
            return QString();
        ++index;
        return currentFilePath();
     }
 
-    QString currentFileName()
+    QString currentFileName() override
     {
         return entries.at(index);
     }

src/corelib/doc/snippets/code/src_corelib_io_qprocess.cpp

@@ -94,7 +94,7 @@ class SandboxProcess : public QProcess
 {
     ...
  protected:
-     void setupChildProcess();
+     void setupChildProcess() override;
     ...
 };
 

src/corelib/doc/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp

@@ -120,7 +120,7 @@ class CustomDataProxy : public QSortFilterProxyModel
 
     ...
 
-    QVariant data(const QModelIndex &index, int role)
+    QVariant data(const QModelIndex &index, int role) override
     {
         if (role != Qt::BackgroundRole)
             return QSortFilterProxyModel::data(index, role);

src/corelib/doc/snippets/code/src_corelib_kernel_qobject.cpp

@@ -101,7 +101,7 @@ class MainWindow : public QMainWindow
     MainWindow();
 
 protected:
-    bool eventFilter(QObject *obj, QEvent *ev);
+    bool eventFilter(QObject *obj, QEvent *ev) override;
 
 private:
     QTextEdit *textEdit;
@@ -147,7 +147,7 @@ class MyObject : public QObject
     MyObject(QObject *parent = 0);
 
 protected:
-    void timerEvent(QTimerEvent *event);
+    void timerEvent(QTimerEvent *event) override;
 };
 
 MyObject::MyObject(QObject *parent)
@@ -215,7 +215,7 @@ class KeyPressEater : public QObject
     ...
 
 protected:
-    bool eventFilter(QObject *obj, QEvent *event);
+    bool eventFilter(QObject *obj, QEvent *event) override;
 };
 
 bool KeyPressEater::eventFilter(QObject *obj, QEvent *event)
@@ -508,7 +508,7 @@ class MyClass : public QWidget
     MyClass(QWidget *parent = 0);
     ~MyClass();
 
-    bool event(QEvent* ev)
+    bool event(QEvent* ev) override
     {
         if (ev->type() == QEvent::PolishRequest) {
             // overwrite handling of PolishRequest if any

src/corelib/doc/snippets/code/src_corelib_thread_qexception.cpp

@@ -53,8 +53,8 @@
 class MyException : public QException
 {
 public:
-    void raise() const { throw *this; }
-    MyException *clone() const { return new MyException(*this); }
+    void raise() const override { throw *this; }
+    MyException *clone() const override { return new MyException(*this); }
 };
 
 //! [0]

src/corelib/doc/snippets/code/src_gui_itemviews_qidentityproxymodel.cpp

@@ -58,7 +58,7 @@ class DateFormatProxyModel : public QIdentityProxyModel
     m_formatString = formatString;
   }
 
-  QVariant data(const QModelIndex &index, int role) const
+  QVariant data(const QModelIndex &index, int role) const override
   {
     if (role != Qt::DisplayRole)
       return QIdentityProxyModel::data(index, role);

src/corelib/doc/snippets/eventfilters/filterobject.h

@@ -59,7 +59,7 @@ class FilterObject : public QObject
 
 public:
     FilterObject(QObject *parent = 0);
-    bool eventFilter(QObject *object, QEvent *event);
+    bool eventFilter(QObject *object, QEvent *event) override;
     void setFilteredObject(QObject *object);
 
 private:

src/corelib/doc/snippets/events/events.cpp

@@ -54,7 +54,7 @@
 class MyCheckBox : public QCheckBox
 {
 public:
-    void mousePressEvent(QMouseEvent *event);
+    void mousePressEvent(QMouseEvent *event) override;
 };
 
 //! [0]
@@ -72,7 +72,7 @@ void MyCheckBox::mousePressEvent(QMouseEvent *event)
 class MyWidget : public QWidget
 {
 public:
-    bool event(QEvent *event);
+    bool event(QEvent *event) override;
 };
 
 static const int MyCustomEventType = 1099;

src/corelib/doc/snippets/settings/settings.cpp

@@ -143,7 +143,7 @@ class MainWindow : public QMainWindow
     void readSettings();
 
 protected:
-    void closeEvent(QCloseEvent *event);
+    void closeEvent(QCloseEvent *event) override;
 };
 
 //! [16]

src/corelib/doc/snippets/statemachine/eventtest.cpp

@@ -58,7 +58,7 @@ class MyTransition : public QAbstractTransition
 
 protected:
 //![0]
-    bool eventTest(QEvent *event)
+    bool eventTest(QEvent *event) override
     {
         if (event->type() == QEvent::Wrapped) {
             QEvent *wrappedEvent = static_cast<QStateMachine::WrappedEvent *>(event)->event();
@@ -71,7 +71,7 @@ class MyTransition : public QAbstractTransition
     }
 //![0]
 
-    void onTransition(QEvent *event)
+    void onTransition(QEvent *event) override
     {
 
     }

src/corelib/doc/snippets/statemachine/main4.cpp

@@ -72,15 +72,15 @@ class StringTransition : public QAbstractTransition
         : m_value(value) {}
 
 protected:
-    virtual bool eventTest(QEvent *e)
+    bool eventTest(QEvent *e) override
     {
         if (e->type() != QEvent::Type(QEvent::User+1)) // StringEvent
             return false;
         StringEvent *se = static_cast<StringEvent*>(e);
         return (m_value == se->value);
     }
 
-    virtual void onTransition(QEvent *) {}
+    void onTransition(QEvent *) override {}
 
 private:
     QString m_value;

src/gui/doc/snippets/draganddrop/dragwidget.h

@@ -74,10 +74,10 @@ class DragWidget : public QFrame
     void mimeTypes(const QStringList &types);
 
 protected:
-    void dragEnterEvent(QDragEnterEvent *event);
-    void dropEvent(QDropEvent *event);
-    void mouseMoveEvent(QMouseEvent *event);
-    void mousePressEvent(QMouseEvent *event);
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;
 
 private:
     QByteArray data;

src/gui/doc/snippets/dragging/mainwindow.h

@@ -68,7 +68,7 @@ class MainWindow : public QMainWindow
     MainWindow(QWidget *parent = 0);
 
 protected:
-    void mousePressEvent(QMouseEvent *event);
+    void mousePressEvent(QMouseEvent *event) override;
 
 private:
     QLabel *iconLabel;

src/gui/doc/snippets/dropevents/window.h

@@ -67,8 +67,8 @@ class Window : public QWidget
     Window(QWidget *parent = 0);
 
 protected:
-    void dragEnterEvent(QDragEnterEvent *event);
-    void dropEvent(QDropEvent *event);
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
 
 private:
     QComboBox *mimeTypeCombo;

src/gui/doc/snippets/droprectangle/window.h

@@ -67,8 +67,8 @@ class Window : public QWidget
     Window(QWidget *parent = 0);
 
 protected:
-    void dragMoveEvent(QDragMoveEvent *event);
-    void dropEvent(QDropEvent *event);
+    void dragMoveEvent(QDragMoveEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
 
 private:
     QComboBox *mimeTypeCombo;

src/gui/doc/snippets/matrix/matrix.cpp

@@ -53,7 +53,7 @@
 
 class SimpleTransformation : public QWidget
 {
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 };
 
 //! [0]
@@ -73,7 +73,7 @@ void SimpleTransformation::paintEvent(QPaintEvent *)
 
 class CombinedTransformation : public QWidget
 {
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 };
 
 //! [1]
@@ -97,7 +97,7 @@ void CombinedTransformation::paintEvent(QPaintEvent *)
 
 class BasicOperations : public QWidget
 {
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 };
 
 //! [2]

src/gui/doc/snippets/plaintextlayout/window.h

@@ -61,7 +61,7 @@ class Window : public QWidget
     Window(QWidget *parent = 0);
 
 protected:
-    void paintEvent(QPaintEvent *event);
+    void paintEvent(QPaintEvent *event) override;
 
 private:
     QFont font;

src/gui/doc/snippets/qfileopenevent/main.cpp

@@ -61,7 +61,7 @@ class MyApplication : public QApplication
     {
     }
 
-    bool event(QEvent *event)
+    bool event(QEvent *event) override
     {
         if (event->type() == QEvent::FileOpen) {
             QFileOpenEvent *openEvent = static_cast<QFileOpenEvent *>(event);

src/gui/doc/snippets/separations/finalwidget.h

@@ -71,8 +71,8 @@ class FinalWidget : public QFrame
     const QPixmap *pixmap() const;
 
 protected:
-    void mouseMoveEvent(QMouseEvent *event);
-    void mousePressEvent(QMouseEvent *event);
+    void mouseMoveEvent(QMouseEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;
 
 private:
     void createImage();

src/gui/doc/snippets/textdocument-imagedrop/textedit.h

@@ -59,8 +59,8 @@ class TextEdit : public QTextEdit
 
 public:
     TextEdit(QWidget *parent=0);
-    bool canInsertFromMimeData( const QMimeData *source ) const;
-    void insertFromMimeData( const QMimeData *source );
+    bool canInsertFromMimeData( const QMimeData *source ) const override;
+    void insertFromMimeData( const QMimeData *source ) override;
 };
 
 #endif

src/gui/doc/snippets/transform/main.cpp

@@ -53,7 +53,7 @@
 
 class SimpleTransformation : public QWidget
 {
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 };
 
 //! [0]
@@ -73,7 +73,7 @@ void SimpleTransformation::paintEvent(QPaintEvent *)
 
 class CombinedTransformation : public QWidget
 {
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 };
 
 //! [1]
@@ -97,7 +97,7 @@ void CombinedTransformation::paintEvent(QPaintEvent *)
 
 class BasicOperations : public QWidget
 {
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 };
 
 //! [2]

src/opengl/doc/snippets/code/src_opengl_qgl.cpp

@@ -146,7 +146,7 @@ class MyGLDrawer : public QGLWidget
 
 protected:
 
-    void initializeGL()
+    void initializeGL() override
     {
         // Set up the rendering context, define display lists etc.:
         ...
@@ -155,7 +155,7 @@ class MyGLDrawer : public QGLWidget
         ...
     }
 
-    void resizeGL(int w, int h)
+    void resizeGL(int w, int h) override
     {
         // setup viewport, projection etc.:
         glViewport(0, 0, (GLint)w, (GLint)h);
@@ -164,7 +164,7 @@ class MyGLDrawer : public QGLWidget
         ...
     }
 
-    void paintGL()
+    void paintGL() override
     {
         // draw the scene:
         ...